100 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



A NEW SPECIES OF THE GENUS SECODELLA. 



BY J. C. CRAWFORD. 



This interesting species was first reared by Mr. Marcovitch in 

 1913 when he secured a very few specimens, but during 1914 

 it occurred in large numbers and a fine series was sent to me for 

 study. 



The species of this genus are very striking in appearance due 

 to the lines of cilia on the fore wing and also to the row of bristles 

 on the under side of the wing just back of the marginal vein. 



Secodella argyresthise n. sp. 



Female: Length 3 mm! Deep purple with some greenish tints; face 

 with a deep cross furrow in front of anterior ocellus; head with crowded 

 fine punctures, those above cross furrow coarser; antennae brown, scape 

 and pedicel purple; first and second joints of funicle subequal in length, 

 each about one and one-half times as long as the pedicel; third and fourth 

 joints successively shorter, together about as long as the club; meso- 

 notum with fine thimble-like punctures, those on the scutellum finer than 

 on scutum; propodeum very short, with a median carina; wings hyaline, 

 upper surface of fore wings with six rows of cilia, three from stigmal knob 

 as follows: one running apicad and close to anterior margin of wing, touch- 

 ing anterior margin before apex of wing, one curving caudad and running 

 to apical margin, one running diagonally across wing basad to rear of 

 wing and forming the border of the non-ciliated basal area; two lines run 

 from base of ciliated area to apical margin, one close to posterior border, 

 the other some distance anteriad of the former; the sixth originating within 

 the ciliated area and running to apical margin; lower surface of fore wings 

 with a row of five or six long curved bristles close to marginal vein at about 

 its middle; legs purple, anterior tarsi brown, middle and hind tarsi, except 

 apices, whitish; abdomen elongate. 



Male: Length 1.8 mm. Similar to the female. 



Habitat: Ithaca, N. Y. 

 Host: Argyresthia alternatella. 

 Type: Cat. No. 19408, U. S. N. M. 



Described from a series reared by Mr. S. Marcovitch, from 

 whom it was received. 



Actual date of publication, June 8, 1915. 



